WO2020249462A1

WO2020249462A1 - Key for a cylinder lock

Info

Publication number: WO2020249462A1
Application number: PCT/EP2020/065499
Authority: WO
Inventors: Michael Riesel; Florian OBERLEITNER - LEEB
Original assignee: Evva Sicherheitstechnologie Gmbh
Priority date: 2019-06-13
Filing date: 2020-06-04
Publication date: 2020-12-17
Also published as: ES2967123T3; DK3983628T3; PL3983628T3; LT3983628T; HRP20240003T1; EP3983628A1; AT522662B1; PT3983628T; FI3983628T3; HUE065058T2; IL288811A; SG11202112384RA; EP3983628B1; AU2020289948A1; AT522662A1; RS65057B1

Abstract

The invention relates to a key (1) for a cylinder lock, comprising at least one coded side surface (3, 3') running along the longitudinal direction (2) of the key (1), wherein at least one coding (4) for validation in the cylinder lock is provided on the side surface (3, 3'), wherein the coding (4) comprises a first validation surface (5) running in the longitudinal direction (2) of the key (1) and a second validation surface (5') running in the longitudinal direction (2) of the key (1), wherein the validation surfaces (5, 5') are arranged offset to one another in a transverse direction (6, 6') of the key (1), and wherein the validation surfaces (5, 5') are arranged offset to one another in the longitudinal direction (2), and in cross-section they each have the shape of a continuous and preferably periodic curve.

Description

Key for a cylinder lock

The invention relates to a key for a cylinder lock with the features of the preamble of the independent claim.

Such a key comprises at least one, along the longitudinal direction of the

Key running coded side surface on which at least one coding is provided for querying in the cylinder lock, the coding comprising a first and a second query surface running in the longitudinal direction of the key, which are offset from one another in a transverse direction of the key. In the

The transverse direction is a direction running normal to the longitudinal direction of the key, which as a rule lies in the plane of a key surface.

Such keys with interrogation surfaces arranged offset are known in principle from the prior art, the interrogation surfaces regularly running parallel to a central longitudinal plane of the key and with corresponding ones

Query elements in the lock. The offset of the query surfaces in the transverse direction is usually used to at a certain scanning position in

Along the length of the key there are a number of variations in the coding

enable. Thus, both on the wide side and on the narrow side of a typical flat key, a large number of query surfaces offset in the transverse direction of the key can be provided in the form of cut-outs, the position of which can be varied in the transverse direction and depth relative to the side surface of the key. One problem with such keys, however, is that only a limited number of discrete and robustly detectable positions and depths of the interrogation areas can be provided, so that the number of variations is limited.

One object of the invention is to remedy this problem and to provide a key with codes which are designed in such a way that they offer a large number of additional possibilities for variation. In addition, the code formed should be as difficult as possible to copy and reproduce.

According to the invention, this object is achieved by the features of the characterizing part of the independent patent claim.

According to the invention it is provided that the query surfaces are arranged offset from one another in the longitudinal direction of the key and each have the shape of a continuous and preferably periodic curve in cross section. The query surfaces are thus not only offset in the transverse direction, but also in the longitudinal direction, and do not run parallel to the central longitudinal plane of the key, but rather occupy a variable, continuously running distance from it.

The cross-sectional curves of the query areas are preferably designed as sine curves or cosine curves; however, other, preferably periodic, continuous curve shapes are also provided. For example, the

Cross-sectional curves can be trapezoidal or triangular curves with preferably rounded corners. The cross-sectional curves are particularly preferably formed over at least a full period length.

The respective curve can be predefined. For example, a periodic sine curve or cosine curve with a given wavelength and amplitude can be predefined over an angle of at least 0 ° to 360 ° (two half waves) or 0 ° to 540 ° (three half waves). The two interrogation areas preferably have identical amplitudes and identical wavelengths. The interrogation areas preferably each begin with the same amplitude value, which, however, is due to the

Longitudinal shift is not in the same longitudinal position of the key. The query surfaces can have essentially the same length in the longitudinal direction, so that the two curves, for example, after passing through one

Maximum value, a zero crossing and a minimum value again end at the same amplitude value. The invention is not limited to the use of sine curves or cosine curves as cross-sectional curves of the interrogation areas.

The features according to the invention ensure that the two query surfaces have a depth relative to the central longitudinal plane and in the longitudinal direction of the key, which is variable in different ways and thus difficult to scan or copy for attackers, but which are in a clear relationship to one another and are therefore easy to manufacture are.

By simply varying the offset of the two query surfaces you can

various variations of the coding can be produced. The offset in the longitudinal direction can be varied, for example, in multiples of an angular dimension of the curves, for example 15 ° or 30 °, in order to obtain different codings.

According to the invention it can also be provided that the query surfaces in

In the longitudinal direction are offset from one another in such a way that the curves formed in the cross-section are offset from one another in the longitudinal direction by an angle of preferably about 45 ° to 135 °, preferably about 90 °, so that the query surfaces intersect in several points along the longitudinal direction, which are used as scanning points Serving coding. When using sine or cosine curves, this has the particular technical advantage that the points of intersection of the two interrogation surfaces lie in the area in which they have the greatest different slope. When the sine curves are executed over one period (two half-waves), i.e. 0 ° to 360 °, two intersection points result, when the sinusoidal curves over one

Angular dimensions from 0 ° to 540 ° (three half waves) result in three intersection points that can be used for scanning. Scanning at these intersection points can be implemented in a particularly robust manner and is less prone to errors. The curves, i.e. the respective cross-sections of the query surfaces, can have a

Have period lengths of about 4mm to 25mm, preferably about 7mm to 15mm, particularly preferably about 8mm to 12mm. This period length corresponds to an angle range from 0 ° to 360 °. However, it can also be provided that the curves are executed over more than one period, so that the entire extent of the interrogation area is significantly longer than the mentioned period length of the curve.

In particular, it can be provided that the coding and thus the

Inquiry surface extends only in sections over a partial area of the longitudinal extent of the key. However, it can also be provided that the coding and thus the query area extend over essentially the entire longitudinal extent of the key, that is to say from the key head to the key tip.

The amplitude of the curves can be approximately 0.1 mm to 1.5 mm, preferably 0.3 mm to 1.0 mm, particularly preferably 0.5 mm to 0.8 mm. The selected amplitude, however, depends on the available material thickness of the key at the position of the coding and can also be significantly larger, for example up to 3 mm.

The query surfaces can be formed in the form of recesses as millings or as embossments on the side surface. At the transition to the side surface, run-in bevels can optionally be formed at both ends of the respective recesses in order to facilitate the introduction and execution of the scanning elements of the lock. In this case, the run-in slopes are preferably not part of the query surfaces. The inlet slopes can be linear or non-linear.

For example, when using a milling tool, the run-in bevel can have a course in the shape of a segment of a circle. In contrast, when using an embossing die, the run-in bevel can have any desired, in particular linear, profile.

In the coding, preferably between the first query area and the second query area and preferably at one of the intersections of the

Scanning points formed interrogation areas, a magnetic element can be arranged. This can serve to interact with an interrogation element arranged in the lock. The interrogation element arranged in the lock can be converted from a locked state into an unlocked state by the magnetic effect, wherein the interrogation element itself can comprise a magnetic element. As a result, it is not necessary to load the query element in the lock with a spring tension. In addition, a minimal play in the mounting of the interrogation element can be compensated for by the magnetic effect in that the magnetic element pulls the interrogation element into the correct position for engagement in the interrogation surfaces. The magnetic element can be arranged centrally in the longitudinal direction along the interrogation surfaces in order to avoid tilting. For the same reason, when using several query elements, these can be arranged symmetrically in the longitudinal direction.

According to the invention it can be provided that the key is a flat key, wherein the side surface is the broad side of the key and is in a first

Extends transversely. However, it can also be provided that the key is a flat key, the side surface being the narrow side of the key and extending in a second transverse direction. The first transverse direction and the second transverse direction are orthogonal to one another and are each normal to the longitudinal direction of the key. Combinations can also be provided, a first coding according to the invention being on a broad side of the key and a second coding according to the invention being on a narrow side of the key.

The codes on the side surfaces can be identical, so that the key is a reversible key that can lock an assigned lock in two positions. The codings on the side surfaces can also be different, so that the key is a non-reversible key that can lock an assigned lock in only one position.

According to the invention it can be provided that the query surfaces have an extension of 4mm to 25mm, preferably about 7mm to 15mm, particularly preferably about 8mm to 12mm, in the longitudinal direction. The extension of the interrogation areas can coincide with the period length of the curve, but it can also be provided that the interrogation area extends over more than one period length. The query surfaces can extend in the transverse direction from approximately 1 mm to 10 mm, preferably from 1.5 mm to 3.5 mm, particularly preferably from approximately 2.0 mm to 3.0 mm. However, the extension in the transverse direction is primarily due to the

Accuracy of the tool used to manufacture and the entire width of the key in the transverse direction is limited.

According to the invention it can be provided that the interrogation surfaces are formed as a groove base of a preferably conical or rectangular cut-out of the side surface, the interrogation surfaces not protruding beyond the outer cross-sectional profile of the key.

The curve formed in the cross section of the interrogation areas can be designed in such a way that it just reaches the side surface with its highest amplitude, so that the depth of the interrogation area relative to the side area is essentially double

Corresponds to the amplitude value.

According to the invention it can also be provided that the query surfaces as

Tip surface or comb of a preferably conical or rectangular material web projecting from the side surface are formed, the query surfaces projecting beyond the outer cross-sectional profile of the key. The cross section of the

The curve formed by the interrogation surfaces is designed in such a way that it just reaches the side surface with its lowest amplitude, so that the height of the interrogation surface relative to the side surface essentially corresponds to twice the amplitude value.

According to the invention, however, combinations thereof are also possible. Thus, a key according to the invention can have a first coding, the interrogation surfaces of which are formed as the groove base of a preferably conical or rectangular incision milling of a first side surface, the interrogation surfaces being the outer one

Do not protrude cross-sectional profile of the key, and have a second coding, the query surfaces of which are formed as a tip surface or ridge of a preferably conical or rectangular, protruding material web of this or another side surface, these query surfaces projecting beyond the outer cross-sectional profile of the key. The invention also extends to a system comprising a key according to the invention and a scanning element of a cylinder lock, which is designed to query the coding, in particular the query areas, in order to block the cylinder lock.

The sensing element may comprise a stylus with a sensing tip, the

Scanning tip is adapted to the shape of the interrogation areas at the scanning points. The scanning points can in particular be formed at those points along the longitudinal direction of the key at which the curves of the interrogation surfaces intersect.

Correspondingly, the scanning elements can be provided at those points in the key channel of the cylinder lock at which the intersection points of the curves of an authorized key are provided.

The scanning element can also be designed as a sideshift with an end face or comprise this, the end face being adapted to the shape of the query surfaces. In this embodiment, the scanning element scans not only the points of intersection of the curves, but the entire shape of the interrogation surfaces.

In the area of its end face, the sideshift can comprise a magnetic element which is designed to interact with the magnetic element of the key in order, according to the invention, to correctly position the sideshifter relative to the query surface.

Further features according to the invention emerge from the patent claims, the drawings and the description of the exemplary embodiments. The invention is explained in more detail below on the basis of several non-exclusive exemplary embodiments. Show it:

Figs. 1 a - 1 e a first embodiment of a key according to the invention, as well as scanning elements according to the invention in the form of scanning pins;

Figs. 2a-2e a second embodiment of a key according to the invention, as well as scanning elements according to the invention in the form of a sideshift; Figs. 3a-3e a third embodiment of a key according to the invention and scanning elements according to the invention in the form of laterally extending

Tracer pens;

Figs. 4a-4d show a fourth exemplary embodiment of a key according to the invention with a combination of two codes in the form of milled incisions and protruding material webs.

Figs. 1 a-1 e show a first embodiment of an inventive

Key 1 for a cylinder lock, not shown. In this exemplary embodiment, the key 1 is a flat key with two opposite narrow sides or front sides and two opposite broad sides or flat sides. A coded side surface 3 runs along the longitudinal direction 2 of the key 1, this being a broad side which extends in the transverse direction 6. The

The transverse direction 6 is essentially orthogonal to the longitudinal direction 2.

The side surface 3 is profiled in a conventional manner and has a code 4 for interrogation in the cylinder lock. The coding 4 is formed only in sections along a partial area of the longitudinal extent of the key 1. The section D-D along the coding 4 is shown in detail in FIG. 1b. It can be seen that the coding 4 has a first query surface 5 running in the longitudinal direction 2 of the key 1 and a second query surface 5 also running in the longitudinal direction 2 of the key 1

Includes query area 5 ‘. In this embodiment, the query surfaces 5, 5 'are each formed as a groove base of a conical incision 9, 9' of the side surface 3 and do not protrude beyond the outer cross-sectional profile of the key 1, as is also shown in FIG. 1 e.

The query surfaces 5, 5 'are arranged offset from one another in the transverse direction 6 of the key 1, with a slight overlap in the region of less than 10% of their width being provided, as can be better seen in FIG. 1c. This overlap is due to the mechanical production of the incisions, in particular due to their conical shape. This results in overlapping areas running in the longitudinal direction 2 and overlapping areas running in the transverse direction 6 between the interrogation areas 5, 5 ′

Overlapping edges which, if necessary, can simplify the scanning of the query surfaces 5, 5 '.

The interrogation surfaces 5, 5 'are in the form of recesses, namely milled incisions, of the side surface 3 and have linear inlet slopes 7, 7' on both sides at the transition to the side surface 3, as can be better seen in FIG. 1c.

The query surfaces 5, 5 'are arranged offset from one another in the longitudinal direction 2. In cross section, the interrogation surfaces 5, 5 'each have the shape of a sinusoidal curve, which, however, are shifted by an angle of approximately 90 °. In the present

In the exemplary embodiment, the sine curves each extend over a total angle of approximately 540 °, that is to say three half-waves.

In this context, the angle information relates to a distance in

Longitudinal direction 2, whereby, for example, an angular dimension of 540 ° can correspond to a distance of approximately 19 mm, measured from the respective ends of the linear inlet slopes 7, 7 ‘. In other exemplary embodiments, the distance covered by the sine curves can also be larger or smaller. The two sinusoids each have an essentially identical amplitude and an essentially identical wavelength. The amplitude of the sinusoid is in the present case

Embodiment about 0.5mm.

This choice of sinusoidal curves results in three intersection points of the sinusoidal curves in the present exemplary embodiment, which are identified in FIG. 1 b with the letters A, B and C and can serve as sampling points 8. According to the invention, the scanning areas are scanned at these scanning points 8, with a schematic

Scanning element in the form of a pen 12 with a scanning tip 13 is shown. The pin 12 is a known core pin of a cylinder lock, the scanning tip 13 of which is adapted to the shape of the query surfaces 5, 5 ‘in the area of the

The intersection of the two sinusoids is adjusted by corresponding

Has sinusoidal shaped tip surfaces. The corresponding cylinder lock is designed to lock when the pin 12 is in full contact with the query surfaces 5, 5 '.

Fig. 1c shows a detailed view of the tip of the key 1. Here it is clearly visible that the two query surfaces 5, 5 ‘of the coding 4 are offset in the transverse direction 6, but are arranged slightly overlapping. The overlap results in this

Exemplary embodiment in the production of the incision millings by a tool which produces recesses with a conical cross section.

This is also shown in section G-G of FIG. 1 e, in which it is shown that the

Inquiry surface 5 is designed as a groove base of a conical incision 9. This conical cross-sectional shape is sinusoidal in combination with the

running depth of the incision millings 9, 9 ‘the reason for the undulating course of the lower edge of the groove base visible in FIG. 1 c and also leads to the query surfaces 5, 5‘ having different widths in the transverse direction 6 depending on their depth.

In Fig. 1 c, the inlet slopes 7, 7 ‘of the query surfaces 5, 5‘ are also shown. These run-in bevels 7, 7 'are essentially linear and allow the

Follower pin 12 can be easily inserted into the cut-out. The sinusoids begin from the ends of the run-in bevels 7, 7 'shown with transverse edges and each extend over three half-waves. The total length of the query surfaces 5, 5 'in the longitudinal direction 2 is approximately 19 mm in this exemplary embodiment, measured between the ends of the linear inlet slopes 7, 7'. The width of the interrogation surfaces 5, 5 'in the transverse direction 6 is in this embodiment each about 1.5mm, this denoting the width on the surface of the side surface 3, especially since the width of the interrogation surfaces 5, 5' at the groove base is variable.

1d shows an embodiment of a system comprising the key 1 with two scanning elements in the form of pins 12, 12 'which are designed to scan the interrogation surfaces 5, 5' at the scanning positions A and C. In this embodiment, the scanning position B is not scanned. Figs. 2a-2e show a second exemplary embodiment of an inventive

Key, and a system of a key according to the invention and

Scanning elements in the form of a sideshift 14. The reference numerals used and the elements identified by them correspond to those that were used in connection with the exemplary embodiment according to FIGS. 1 a - 1 e, apart from the following differences.

In contrast to the first exemplary embodiment, there is a ‘in the coding 4, namely between the first query area 5 and the second query area 5

magnetic element 10, namely a permanent magnet, arranged. The

The magnetic element 10 is located in the longitudinal direction 2 at one of the scanning points 8, namely at the scanning point A. This is shown in greater detail in the sectional illustration E-E according to FIG. 2b and in the view of the key tip according to FIG. 2c. In exemplary embodiments that are not shown, a second magnetic element 10 can be provided at the scanning point B in order to facilitate symmetrical insertion of the sideshifter 14.

Fig. 2b also shows a detailed view of the sideshifter 14, which in contrast to the pins 12, 12 'from the first embodiment not only individual

Scans scanning points, but is designed via its correspondingly shaped end face 15 to scan the two query surfaces 5, 5 ‘in the region of the sinusoidal curves, that is, between the inlet slopes 7, 7‘ completely. Errors in the sinusoidal curves thus lead to the lock blocking even if these errors occur outside of the sampling points 8.

The sideshift 14 is elongated in order to scan the sine curves over their entire length, and has a magnetic element 16 which is designed to interact with the permanent magnet in the coding 4. This ensures that the sideshift 14 is tightened when it approaches the coding 4 and thus minimal play does not lead to the lock being blocked. The

However, sideshift 14 is shorter than the entire incision milling

Inquiry surfaces 5, 5 ', since it only covers the area of the sinusoidal curves and not the area of the inlet slopes 7, 7' provided on both sides. In contrast to the first exemplary embodiment, the length of the sine curves in this exemplary embodiment is only about 360 °, that is to say two half-waves, so that only two scanning points 8 result, which are designated by A and B in FIG. 2b.

FIG. 2c also shows that in this exemplary embodiment the query surfaces 5, 5 'do not overlap along the transverse extension 6 of the key 1, but rather adjoin one another directly. This is achieved by using appropriate tools, for example embossing dies.

The magnetic element 10 is in the transverse direction 6 centrally between the two

Inquiry surfaces 5, 5 ‘arranged. FIG. 2e, in which a section H-H is shown, also shows that the incision milling 9 which forms the interrogation surface 5 is not conical, but rectangular in this exemplary embodiment. Thus, in contrast to the first exemplary embodiment, there are no overlapping areas.

Fig. 2d shows a system from the key 1 with a sideshift 14 which comprises an end face 15, the end face 15 being adapted to the shape of the query surfaces 5, 5 '.

Figs. 3a-3e show a third embodiment of an inventive

Key, and a system of a key according to the invention and

Scanning elements in the form of laterally arranged scanning pins. Except for the following differences, the reference symbols used correspond to those used in

Connection with the embodiment according to FIGS. 1 a - 1 e were used.

In contrast to the first exemplary embodiment, in this exemplary embodiment the coding 4 is not arranged on the broad side of the key 1, but on the narrow side of the key 1, that is to say the face of the flat key shown.

Correspondingly, the transverse direction 6 'is a direction which is orthogonal to the transverse direction 6 in the first and second exemplary embodiments. Again, two interrogation surfaces 5, 5 'are arranged offset from one another in the longitudinal direction 2, each having the shape of a sinusoid formed over an angular range of approximately 540 ° in cross section. The sine curves are around a

Angular measure of approximately 90 ° with respect to one another in the longitudinal direction 2, so that three sampling points 8 result as intersection points of the sinusoids, which are designated as A, B and C in FIG. 3b.

Again, the two interrogation areas 5, 5 ‘overlap, as can be seen in FIG. 3c, so that overlapping areas are formed. Furthermore, the query surfaces 5, 5 ‘are again formed as a groove base of a conical incision 9 of the side surface 3, the query surfaces 5, 5‘ not the outer cross-sectional profile of the key 1

protrude as shown in Fig. 3e. In contrast to the embodiment of Figs.

1 a - 1 e, in this exemplary embodiment, the coding 4 is not queried by conventional core pins, but by pins 12, 12 'which are angled along the broad side of the key 1 or the key channel in the lock, but which also only have the scanning positions A and Scan C as shown schematically in Fig. 3d. Such laterally and angularly arranged pins for scanning face-end codes of flat keys are known per se and make it possible to detect both the presence (positive test) and the absence (negative test) of corresponding codes.

The amplitude of the sine curves can be significantly higher in this exemplary embodiment, for example 3mm or 4mm, than in the first two exemplary embodiments, since cut-outs on the face of a flat key can usually be deeper than on the broad side of the flat key.

Figs. 4a-4d show a fourth exemplary embodiment of a key 1 according to the invention with a combination of two codings 4 in the form of milled incisions and protruding material webs. Except for the following differences, the reference symbols used correspond to those which were used in connection with the exemplary embodiment according to FIGS. 1 a - 1 e. Fig. 4a shows the key 1 with its side surface 3 on which a code 4 is arranged in the form of two protruding material webs. The material webs in turn form query surfaces 5a, 5a ', which are offset from one another in the longitudinal direction 2 and in the transverse direction 6. 4b shows a view of the key from above, and it can be seen that the material webs protrude beyond the cross section of the key. The query surfaces 5a, 5a 'are in the form of the tip surface or the ridge of a conical, protruding material web 1 1, 1 1' of the side surface 3, the query surfaces 5a, 5a 'projecting beyond the outer cross-sectional profile of the key 1. The overlap in the transverse direction and the conical cross-section are clearly shown in FIGS. 4c and 4d, which show a sectional illustration along the line JJ in FIG. 4c.

In addition to the coding 4, in which the query surfaces are designed as a material web 1 1, 1 1 ', the key 1 according to this exemplary embodiment has a further coding 4 (not visible in FIGS. 4a and 4c), the query surfaces 5, 5 'are formed as the groove bottom of a conical cut 9, 9' on the opposite side surface 3 ', the query surfaces 5, 5' the outer

Do not protrude beyond the cross-sectional profile of the key 1.

In this exemplary embodiment, the execution of the query surfaces 5, 5 'in the form of the bottom of the groove of an incision is combined with the execution in the form of the tip surface or the ridge of a protruding material web 11, 11' '.

The scope of protection is not limited to the illustrated embodiments, but also includes combinations of different embodiments. Thus, keys according to the invention can have a plurality of codings which are implemented in different designs on the narrow side and / or the broad side. Both the choice of sampling points and the execution of the curves are not dependent on the

Limited versions shown. In particular, different

Shapes, amplitudes and period lengths of the curves can be provided, both for different codings and within a coding for different interrogation areas. Furthermore, more than two query areas can be provided in a coding, which are then arranged offset both in the transverse direction and in the longitudinal direction. List of reference symbols

1 key

2 longitudinal direction

3, 3 ‘side face

4 coding

5, 5 ‘query area

5a, 5a ‘tip surface

6, 6 ‘cross direction

7, 7 ‘inlet bevel

8 sampling points A, B, C

9 Notch milling

10 Magnetic element of the key 11, 1 1 ‘material bar

12, 12 "pen

13 scanning tip

14 sideshift

15 face

16 Magnetic element of the sideshift

Claims

1. Key (1) for a cylinder lock, comprising at least one coded side surface (3, 3 des) running along the longitudinal direction (2) of the key (1), a. wherein on the side surface (3, 3 ‘) at least one coding (4) for

Query is provided in the cylinder lock,

b. wherein the coding (4) comprises a first query surface (5) running in the longitudinal direction (2) of the key (1) and a second query surface (5 ‘) running in the longitudinal direction (2) of the key (1), c. wherein the query surfaces (5, 5 ‘) are arranged offset to one another in a transverse direction (6, 6‘) of the key (1),

characterized in that

d. the query surfaces (5, 5 ‘) offset from one another in the longitudinal direction (2)

are arranged, and

e. each have the shape of a continuous and preferably periodic curve in their cross section.

2. Key according to claim 1, characterized in that the curves as

sine curves or cosine curves formed preferably over at least a full period length are formed.

3. key (1) according to claim 1 or 2, characterized in that the

Inquiry surfaces (5, 5 ') are offset from one another in the longitudinal direction (2) in such a way that the curves formed in cross section in the longitudinal direction (2) are offset from one another by an angle of preferably 45 ° to 135 °, preferably about 90 °, so that the Cut query surfaces (5, 5 ') along the longitudinal direction (2) in two or more scanning points (8).

4. key (1) according to one of claims 1 to 3, characterized in that the curves have a period length of about 4mm to 25mm, preferably about 7mm to 15mm, particularly preferably about 8mm to 12mm.

5. Key (1) according to one of claims 1 to 4, characterized in that the curves have an amplitude of 0.1 mm to 1.5 mm, preferably 0.3 mm to 1.0 mm, particularly preferably 0.5 mm to 0.8 mm exhibit.

6. Key (1) according to one of claims 1 to 5, characterized in that the query surfaces (5, 5 ‘) are formed in the form of recesses by milling or embossing of the side surface (3, 3‘), where appropriate on

Transition to the side surface (3, 3 ‘) on both sides linear or non-linear run-in bevels (7, 7‘) are formed.

7. key (1) according to any one of claims 1 to 6, characterized in that the coding (4) only in sections along a portion of the

Longitudinal extension of the key (1) is formed.

8. Key (1) according to one of claims 1 to 7, characterized in that in the coding (4), preferably along the transverse direction (6, 6 ') between the first query surface (5) and the second query surface (5') and a magnetic element (10) is preferably arranged at one of the scanning points (8).

9. key (1) according to claim 8, characterized in that the magnetic element (10) is arranged centrally along the query surfaces (5, 5 ‘) in the longitudinal direction (2).

10. Key (1) according to one of claims 1 to 9, characterized in that the key (1) is a flat key, wherein the side surface (3, 3 ‘) the

Is broadside of the key and extends in a first transverse direction (6).

11. Key (1) according to one of claims 1 to 9, characterized in that the key (1) is a flat key, wherein the side surface (3, 3 ‘) the

The narrow side of the key and extends in a second transverse direction (6 ‘).

12. Key (1) according to one of claims 1 to 1 1, characterized in that the codings on the side surfaces (3, 3 ') are identical, so that the key (1) is a reversible key.

13. Key (1) according to one of claims 1 to 1 1, characterized in that the codings on the side surfaces (3, 3 ‘) are different, so that the key (1) is a non-reversible key.

14. Key (1) according to one of claims 1 to 13, characterized in that the query surfaces (5, 5 ') in the transverse direction (6, 6') have an extension of about 1 mm to 10 mm, preferably 1.5 mm to 3, 5mm, particularly preferably about 2.0mm to 3.0mm.

15. Key (1) according to one of claims 1 to 14, characterized in that the query surfaces (5, 5 ') are formed as a groove base of a preferably conical or rectangular cut (9, 9') of the side surface (3), wherein the Inquiry surfaces (5, 5 ') do not protrude beyond the outer cross-sectional profile of the key (1).

16. Key (1) according to one of claims 1 to 14, characterized in that the query surfaces (5a, 5a ‘) as a tip surface or ridge of a preferably conical or rectangular, protruding material web (1 1, 11‘)

Side surface (3) are formed, the query surfaces (5a, 5a ‘) projecting beyond the outer cross-sectional profile of the key (1).

17. Key (1) according to one of claims 1 to 16, characterized in that a. a first coding (4) is provided, the interrogation surfaces (5, 5 ') of which are formed as the groove base of a preferably conical or rectangular incision (9, 9') of a first side surface (3, 3 '), the interrogation surfaces (5, 5 ') not project beyond the outer cross-sectional profile of the key (1), and

b. a second coding (4) is provided, the query surfaces (5a, 5a ') of which are formed as a tip surface or ridge of a preferably conical or rectangular, protruding material web (1 1, 1 1') of this or another side surface (3, 3 ') , wherein the query surfaces (5a, 5a ') protrude beyond the outer cross-sectional profile of the key (1).

18. System of a key (1) according to one of the preceding claims and a scanning element of a cylinder lock, characterized in that the scanning element for querying the coding (4) is designed to the

Lock cylinder lock.

19. System according to claim 18, characterized in that the scanning element comprises a pen (12, 12 ') with a scanning tip (13), the scanning tip (13) being adapted to the shape of the query surfaces (5, 5', 5a, 5a ' ) is adapted to the sampling points (8).

20. System according to claim 18, characterized in that the scanning element comprises a sideshift (14) with an end face (15), the end face (15) being adapted to the shape of the query surfaces (5, 5 ', 5a, 5a') .

21. System according to claim 20, characterized in that the sideshift (14) in the region of its end face (15) comprises a magnetic element (16) which is designed to interact with the magnetic element (10) of the key (1).